This document provides a comparative analysis of representation in the upper house, vertical separation of powers, and legitimacy of the federal legislator between the US and Ethiopian constitutions. It finds that representation in the Ethiopian House of Federation differs from the US Senate in terms of proportionality. It also notes differences in the scope of federal and state powers between the two countries that could undermine powers reserved for Ethiopian states. Additionally, it argues that the unicameral nature of Ethiopia's legislature makes it less legitimate than the bicameral US Congress in representing diversity. The analysis was conducted by Legesse Tigabu at Central European University in Budapest, Hungary.